{"id":320,"date":"2014-06-03T07:30:00","date_gmt":"2014-06-03T05:30:00","guid":{"rendered":"http:\/\/www.argia.eus\/blogak\/ibon-larrazabal\/?p=320"},"modified":"2014-06-03T07:30:00","modified_gmt":"2014-06-03T05:30:00","slug":"oroimena-daukan-metamateriala","status":"publish","type":"post","link":"https:\/\/blogak.argia.eus\/ibon-larrazabal\/2014\/06\/03\/oroimena-daukan-metamateriala\/","title":{"rendered":"Oroimena daukan metamateriala"},"content":{"rendered":"<p><span style=\"color: #000000;font-family: Calibri;font-size: medium\">Cornell unibertsitateko ikerlariek orain dela urte pare bat, eta ezustean, metamaterial bitxi berri bat asmatu zuten, fluido bat dena normalean baina urarekin nahasterakoan bere hasierako edukiontziaren itxura berreskuratzen duena,\u00a0hurrengo bideoan ikus daitekeen eran.<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"DNA hydrogel remembers its first shape\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/MRW1gtbXT08?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><span style=\"color: #000000;font-family: Calibri;font-size: medium\">Metamaterialak, naturan aurki ezin daitezkeen propietate bereziak dauzkaten material artifizialak dira; bere egituratik eratorritako propietateak eta ez bere konposizioagatik edo osagaiengatik. Material hau hidrogel bat da, egun ezagutzen ditugun material arinenetarikoak direnak, molekula organikoen loturaz sortzen direnak, baina molekulen artean hutsune ugari dauzkatenak. Cornell unibertsitateko ikerlariek sorturiko hidrogel hau, izatez, DNA sintetikoz osatua dago. <\/span><\/p>\n<p><span style=\"color: #000000;font-family: Calibri;font-size: medium\">Esan dugunez, DNA sintetikoz eraturiko hidrogel hau fluido bat da era normalean, baina ikerlariek zeraz jabetu ziren, urarekin nahasterakoan materialak eratua izan zen edukiontziaren itxura berreskuratzen zuela, alegia, materialak \u201coroimena\u201d, edo jatorrizko itxuraren oroimena bederen, zeukala. Aurkikuntza hau ezustean harrapatu zituen ikerlariak ez baitzen hura materialaren sorkuntzaren helburua, eta gainera ez daude guztiz ziur prozeduraren mekanikarekin. Dena dela, badirudi meta propietate mekanikoak (naturan aurkitzen ez diren propietate mekanikoak) dituen lehenbiziko metamateriale organikoa dela hau.<\/span><\/p>\n<p><span style=\"color: #000000;font-family: Calibri;font-size: medium\">Guzti hau bitxia bada ere, benetan txundigarria dena zera da, material honen balizko erabilpenak. Hidrogelak alor anitzetan \u201churrengo muga\u201d direla aldarrikatu da, hauen artean medizinen garraioan, hauen barne egiturako hutsuneak farmakoekin bete baitaitezke, gero hauek epe luzetan askatzeko, hidrogela disolbatzen den heinean. Hortaz, pentsa nolako posibilitateak zabaltzen dituen itxura jakin bat momentu jakin batean har dezakeen hidrogel batek! Hidrogel hau medizinaz bete daiteke eta zauri batean sartu, likido bezala. Ondoren, zauri barnean, materiala solidoa bihurtuko zen zauriaren barne itxura zehazki betez eta medizina ingurura isuriz.<\/span><\/p>\n<p><span style=\"color: #000000;font-family: Calibri;font-size: medium\">Gaixotasun edota gaixo oso zehatzetarako tratamendu erabat egoki eta eraginkorrak diseinatzeko balio dezake, are gehiago hiru dimentsiotako irudien tratamendurako teknologiarekin lotuta. Adibidez, tumore bat erauzi ondoren hutsunean hidrogel hau sartuz farmako bat garraiatzen duelarik, bazter guztietara hel daiteke eta farmakoaren askapen luzea eta neurtua bermatzen du, inguruko minbizidun zelulak hiltzen eraginkorragoa izango dena.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cornell unibertsitateko ikerlariek orain dela urte pare bat, eta ezustean, metamaterial bitxi berri bat asmatu zuten, fluido bat dena normalean baina urarekin nahasterakoan bere hasierako edukiontziaren itxura berreskuratzen duena,\u00a0hurrengo bideoan ikus daitekeen eran. Metamaterialak, naturan aurki ezin daitezkeen propietate bereziak dauzkaten material artifizialak dira; bere egituratik eratorritako propietateak eta ez bere konposizioagatik edo osagaiengatik. Material [&hellip;]<\/p>\n","protected":false},"author":80,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-320","post","type-post","status-publish","format-standard","hentry","category-zientzia-bitxia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Oroimena daukan metamateriala - Liber Prodigiorum<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogak.argia.eus\/ibon-larrazabal\/2014\/06\/03\/oroimena-daukan-metamateriala\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oroimena daukan metamateriala - Liber Prodigiorum\" \/>\n<meta property=\"og:description\" content=\"Cornell unibertsitateko ikerlariek orain dela urte pare bat, eta ezustean, metamaterial bitxi berri bat asmatu zuten, fluido bat dena normalean baina urarekin nahasterakoan bere hasierako edukiontziaren itxura berreskuratzen duena,\u00a0hurrengo bideoan ikus daitekeen eran. Metamaterialak, naturan aurki ezin daitezkeen propietate bereziak dauzkaten material artifizialak dira; bere egituratik eratorritako propietateak eta ez bere konposizioagatik edo osagaiengatik. 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